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A 25 mL sample of H(2)SO(4) of unknown m...

A 25 mL sample of `H_(2)SO_(4)` of unknown molarity is reacted with KI solution of molarity 0.8 M and volume 80mL. The excess acid required 10 mL of 2 M NaOH solution for complete neutralisation. Calculate molarity of the `H_(2)SO_(4)` taken:
[Given : `KI+H_(2)SO_(4) to K_(2)SO_(4)+I_(2)+H_(2)S+H_(2)O`
`H_(2)SO_(4)+NaOH to Na_(2)SO_(4)+H_(2)O`

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